Chemistry, 22.04.2021 21:40 lifeisgaming37
(Science)How does the heart keep the blood flowing throughout the body?
It contracts and relaxes
It inflates and deflates
It inhales and exhales
It opens and closes
Answers: 3
Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
Answers: 2
Chemistry, 22.06.2019 16:10
Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
Answers: 1
Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
(Science)How does the heart keep the blood flowing throughout the body?
It contracts and relaxes
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